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frame_support::traits::tokens::asset_ops::common_strategies

Struct CanDestroy

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pub struct CanDestroy<Condition = ()>(pub Condition);
Expand description

The CanDestroy strategy represents the ability to destroy an asset. It is both an inspect and update strategy.

  • As the inspect strategy, it returns bool.
  • As the update strategy, it accepts bool.

By default, this strategy means the ability to destroy an asset “in general”. However, a user can define several variants of this strategy by supplying the Condition type. Using the Condition value, we are formulating the question, “Can this be destroyed under the given condition?”. For instance, “Can a specific user destroy an asset of another user?”.

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§0: Condition

Trait Implementations§

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impl Default for CanDestroy<()>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<Condition> InspectStrategy for CanDestroy<Condition>

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type Value = bool

The value representing the asset’s state related to this InspectStrategy.
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impl<Condition> UpdateStrategy for CanDestroy<Condition>

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type UpdateValue<'u> = bool

The value to update the asset’s state. Usually, it should be related to the corresponding InspectStrategy::Value. Read more
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type Success = ()

This type represents a successful asset state update. It will be in the Result type of the Update::update function.

Auto Trait Implementations§

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impl<Condition> Freeze for CanDestroy<Condition>
where Condition: Freeze,

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impl<Condition> RefUnwindSafe for CanDestroy<Condition>
where Condition: RefUnwindSafe,

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impl<Condition> Send for CanDestroy<Condition>
where Condition: Send,

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impl<Condition> Sync for CanDestroy<Condition>
where Condition: Sync,

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impl<Condition> Unpin for CanDestroy<Condition>
where Condition: Unpin,

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impl<Condition> UnwindSafe for CanDestroy<Condition>
where Condition: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> AsCanUpdate for T
where T: UpdateStrategy,

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fn as_can_update(self) -> CanUpdate<T>

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impl<T> Borrow<T> for T
where T: ?Sized,

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Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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